DL456 – 150mm Masonry Cavity Wall to Flat Roof Parapet

Price range: £9.00 through £14.00 + VAT

This detail shows a 150mm masonry cavity wall finished with facing brickwork, connecting to a flat roof with a parapet. The cavity is fully filled with mineral wool insulation, and internal linings include a service void, plasterboard, and skim finish. The flat roof buildup includes two layers of rigid mineral wool insulation over a polythene vapour control layer and plywood decking. The parapet incorporates an aluminium coping, cavity tray, and upstand insulation for thermal continuity and moisture protection.

See drawing notes for full information.

Features of this detail: masonry cavity wall, brick, flat roof, parapet, mineral wool insulation, rigid insulation, vapour control layer, cavity tray, aluminium coping, facing brickwork

£14.00 + VAT
£9.00 + VAT
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11 Nov25 DL456-DL470 Roof Details

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